Journal article
Importance of pore size in high-pressure hydrogen storage by porous carbons
International journal of hydrogen energy, v 34(15), pp 6314-6319
2009
Abstract
Development of high-capacity hydrogen-storage systems utilizing physisorption at high pressure and low temperature is hindered by poor understanding of the pore size/shape requirements for achieving the maximum hydrogen uptake. Tuning the carbon structure and pore size of carbide-derived carbons (CDCs) with high accuracy by using different starting carbides, chlorination temperatures and activation temperatures allows rational design of carbon materials with increased hydrogen-storage capacity. Systematic experimental investigation of a large number of CDCs with controlled pore size distributions and specific surface area (SSA) shows that pores larger than ∼1.5
nm contribute little to hydrogen storage. It has been experimentally demonstrated that, just as at ambient pressure, pores of 0.6–0.7
nm in diameter provide the largest H
2 uptake per unit SSA at elevated pressures and liquid nitrogen temperatures. The effect of pore size was stronger than the effect of surface chemistry on the hydrogen uptake.
Metrics
Details
- Title
- Importance of pore size in high-pressure hydrogen storage by porous carbons
- Creators
- Yury Gogotsi - Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USACristelle Portet - Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USASebastian Osswald - Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USAJason M Simmons - NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USATaner Yildirim - NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USAGiovanna Laudisio - Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USAJohn E Fischer - Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
- Publication Details
- International journal of hydrogen energy, v 34(15), pp 6314-6319
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000269561000032
- Scopus ID
- 2-s2.0-67650732094
- Other Identifier
- 991014878394804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical
- Electrochemistry
- Energy & Fuels